It's your lucky day! YES, intolerance has no cure. Visit to the doctor and tell him (if you do not propose it) that you want to get first cleaning, and then start to re-introduce fructose in your body. Basically, you have to be a month without eating anything with fructose, and then (always with the supervision of a doctor), you will go on eating fructose slowly until your body can tolerate. So keep patience and you'll get it!